TIDUF36A May   2023  – December 2023 DRV8328

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 DRV8328C
      2. 2.3.2 MSPM0G1507
      3. 2.3.3 CSD18510Q5B
      4. 2.3.4 TMP61
  9. 3System Design Theory
    1. 3.1 Power Stage Design: Three-Phase Inverter
      1. 3.1.1 Selecting Sense Resistor
    2. 3.2 Power Stage Design: DRV8328 Gate Driver
      1. 3.2.1 DRV8328 Features
      2. 3.2.2 AVDD Linear Voltage Regulator (LDO)
    3. 3.3 Power Stage Design: MSPM0 Microcontroller
      1. 3.3.1 Low-Side Current Sensing With MSPM0G1507
      2. 3.3.2 Temperature Sensing
    4. 3.4 Power Stage Design: External Interface Options and Indications
      1. 3.4.1 Hall Sensor Interface
      2. 3.4.2 Input Power Voltage Monitoring
      3. 3.4.3 Motor Speed Control
      4. 3.4.4 Direction of Rotation: Digital Input
      5. 3.4.5 Programming Interface for MCU
      6. 3.4.6 Data Transmission
      7. 3.4.7 LED Indicators
      8. 3.4.8 Sleep Mode Entry Control
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
      1. 4.1.1 Hardware Board Overview
    2. 4.2 Software Requirements
    3. 4.3 Test Setup
    4. 4.4 Test Results
      1. 4.4.1 Functional Evaluation of DRV8328 Gate Driver
        1. 4.4.1.1 DRV8328 Linear Regulator Performance
        2. 4.4.1.2 Gate Drive Voltage Generated by Gate Driver
      2. 4.4.2 MOSFET Switching Waveforms
      3. 4.4.3 Current Open Loop Test
      4. 4.4.4 Current Open Loop Load Test
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
    2. 5.2 Tools and Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  12. 6About the Author
  13. 7Revision History

4.2 Software Requirements

TI provides simple sensor trap code to help with evaluation. Install the following software:

For code introduction please view the following files:

Use the following steps to for the reference code:

  1. Open CCS and import the code project (<install_location>\mspm0_sdk_1_20_00_05\examples\nortos\LP_MSPM0G3507\motor_control_bldc_sensored_trap_hall\drv8328\tida-010251-gui-firmware) into CCS
  2. Change lines 65 to 67 in Main.c to adapt to the TIDA-010251 board:

    GUID-20231108-SS0I-SX7V-TT40-NTHBSPFGTPDM-low.png

  3. Build and debug the firmware, select guiVar and reading and ADD WATCH EXPRESSION, adjust the parameters in the following image as needed. Set CSA Gain, PWM frequency, and so forth, from guiVar and observe voltage and current data in reading.

    GUID-20231108-SS0I-FNW9-RHRQ-FJFVPBHKQV2L-low.png

  4. Speed pin inputs 0- to 3.3-V voltage, and the code is converted into Duty drive motor according to the input.
  5. Observe the changes in busvoltage and busCurrent in the reading structure.
CAUTION: When doing high-power testing, make sure you understand the code and configure the parameters correctly.